LICHTENBERG  , formerly a small

German principality on the west bank of the Rhine, enclosed by the Nahe, the Blies and the Glan, now belonging to the government district of Trier, Prussian Rhine province . The principality was constructed of parts of the electorate of Trier, of Nassau-Saarbriicken and other districts, and lay between Rhenish Bavaria and the old Prussian province of the Rhine . Originally called the lordship of Baum-holder, it owed the name of Lichtenberg and its elevation in 1819 to a principality to Ernest, duke of Saxe-Coburg, to whom it was ceded by Prussia, in 1816, in accordance with terms agreed upon at the congress of Vienna .